256804515

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{7307}}^1$

素因数の和:7400

約数の個数: 48

約数和(自身を含む): 492500736

約数和(自身を除く): 235696221

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 71, 99, 165, 213, 355, 495, 639, 781, 1065, 2343, 3195, 3905, 7029, 7307, 11715, 21921, 35145, 36535, 65763, 80377, 109605, 241131, 328815, 401885, 518797, 723393, 1205655, 1556391, 2593985, 3616965, 4669173, 5706767, 7781955, 17120301, 23345865, 28533835, 51360903, 85601505, 256804515]

約数ペア:

[(1, 256804515), (3, 85601505), (5, 51360903), (9, 28533835), (11, 23345865), (15, 17120301), (33, 7781955), (45, 5706767), (55, 4669173), (71, 3616965), (99, 2593985), (165, 1556391), (213, 1205655), (355, 723393), (495, 518797), (639, 401885), (781, 328815), (1065, 241131), (2343, 109605), (3195, 80377), (3905, 65763), (7029, 36535), (7307, 35145), (11715, 21921)]